mirror of
https://github.com/CatalaLang/catala.git
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100 lines
3.3 KiB
OCaml
100 lines
3.3 KiB
OCaml
(* This file is part of the Catala build system, a specification language for
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tax and social benefits computation rules. Copyright (C) 2020 Inria,
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contributor: Emile Rolley <emile.rolley@tuta.io>
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Licensed under the Apache License, Version 2.0 (the "License"); you may not
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use this file except in compliance with the License. You may obtain a copy of
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the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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License for the specific language governing permissions and limitations under
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the License. *)
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module Expr = struct
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type t = Lit of string | Var of string | Seq of t list
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let rec format fmt = function
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| Lit s -> Format.fprintf fmt "%s" s
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| Var s -> Format.fprintf fmt "$%s" s
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| Seq ls -> format_list fmt ls
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and format_list fmt = function
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| hd :: tl ->
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Format.fprintf fmt "%a%a" format hd
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(fun fmt tl ->
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tl |> List.iter (fun s -> Format.fprintf fmt " %a" format s))
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tl
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| [] -> ()
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end
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module Rule = struct
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type t = { name : string; command : Expr.t; description : Expr.t option }
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let make name ~command ~description =
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{ name; command; description = Option.some description }
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let format fmt rule =
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let format_description fmt = function
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| Some e -> Format.fprintf fmt " description = %a\n" Expr.format e
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| None -> Format.fprintf fmt "\n"
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in
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Format.fprintf fmt "rule %s\n command = %a\n%a" rule.name Expr.format
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rule.command format_description rule.description
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end
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module Build = struct
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type t = {
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outputs : Expr.t list;
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rule : string;
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inputs : Expr.t list option;
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vars : (string * Expr.t) list;
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}
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let make ~outputs ~rule = { outputs; rule; inputs = Option.none; vars = [] }
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let make_with_vars ~outputs ~rule ~vars =
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{ outputs; rule; inputs = Option.none; vars }
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let make_with_inputs ~outputs ~rule ~inputs =
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{ outputs; rule; inputs = Option.some inputs; vars = [] }
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let make_with_vars_and_inputs ~outputs ~rule ~inputs ~vars =
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{ outputs; rule; inputs = Option.some inputs; vars }
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let empty = make ~outputs:[Expr.Lit "empty"] ~rule:"phony"
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let unpath ?(sep = "-") path =
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Re.Pcre.(substitute ~rex:(regexp "/") ~subst:(fun _ -> sep)) path
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let format fmt build =
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let format_inputs fmt = function
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| Some exs -> Format.fprintf fmt " %a" Expr.format_list exs
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| None -> ()
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and format_vars fmt vars =
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List.iter
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(fun (name, exp) ->
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Format.fprintf fmt " %s = %a\n" name Expr.format exp)
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vars
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in
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Format.fprintf fmt "build %a: %s%a\n%a" Expr.format_list build.outputs
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build.rule format_inputs build.inputs format_vars build.vars
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end
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module RuleMap : Map.S with type key = String.t = Map.Make (String)
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module BuildMap : Map.S with type key = String.t = Map.Make (String)
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type ninja = { rules : Rule.t RuleMap.t; builds : Build.t BuildMap.t }
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let empty = { rules = RuleMap.empty; builds = BuildMap.empty }
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let format fmt ninja =
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let format_for_all iter format =
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iter (fun _name rule -> Format.fprintf fmt "%a\n" format rule)
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in
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format_for_all RuleMap.iter Rule.format ninja.rules;
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format_for_all BuildMap.iter Build.format ninja.builds
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